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Table 4 Hazard ratio and B coefficient with multivariable Cox regression model and corresponding risk score

From: Risk factors for avascular necrosis in patients with systemic lupus erythematosus: a multi-center cohort study of Chinese SLE Treatment and Research Group (CSTAR) Registry XXII

Variables

Hazard ratio

B coefficient

Score

Age at SLE onset ≤ 30

1.616 (1.067–2.449)

0.480

1

Existing organ damage (SDI≥1) at registration

2.610 (1.748–3.895)

0.959

2

Arthritis

1.642 (1.089–2.475)

0.496

1

Anti-RNP

1.709 (1.162–2.515)

0.536

1

High dose GC at registration

1.747 (1.092–2.795)

0.558

1

  1. SLE systemic lupus erythematosus, GC glucocorticoid